--- product_id: 6326255 title: "Amprobe ULD-300 Ultrasonic Leak Detector" brand: "amprobe" price: "₨6579" currency: LKR in_stock: null reviews_count: 8 url: https://www.desertcart.lk/products/6326255-amprobe-uld-300-ultrasonic-leak-detector store_origin: LK region: Sri Lanka --- # Extension tube reach Ultrasonic sensor Detects leaks & arcing Amprobe ULD-300 Ultrasonic Leak Detector **Brand:** amprobe **Price:** ₨6579 **Availability:** ❌ Out of Stock ## Summary > 🔍 Uncover the unseen with precision! ## Quick Answers - **What is this?** Amprobe ULD-300 Ultrasonic Leak Detector by amprobe - **How much does it cost?** ₨6579 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/6326255-amprobe-uld-300-ultrasonic-leak-detector) ## Best For - amprobe enthusiasts ## Why This Product - Trusted amprobe brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable & Reliable:** Built to last with a one-year limited warranty. - • **Enhanced Usability:** Parabola horn and extension tube for remote access. - • **User-Friendly Interface:** LCD display for easy monitoring and operation. - • **Versatile Gas Detection:** Identifies a wide range of gases, including CFCs and CO2. - • **Precision Leak Detection:** Senses pressurized leaks with pinpoint accuracy. ## Overview The Amprobe ULD-300 Ultrasonic Leak Detector is a cutting-edge tool designed for professionals seeking to detect pressurized leaks, electrical arcing, and failing components with unmatched accuracy. Featuring an ultrasonic sensor that converts high-frequency sounds into audible signals, this device is capable of identifying various gases, including CFCs and CO2. Its ergonomic design includes a parabola horn for enhanced detection in noisy environments and an extension tube for reaching remote leaks. With a user-friendly LCD display and a one-year warranty, the ULD-300 is the ultimate solution for industrial leak detection. ## Description Ultrasonic Leak Detector ## Features - Polyester 100% - Made in the USA and Imported - Senses pressurized leaks, detects electrical arcing, and finds failing solenoids, valves, and bearings - Ultrasonic sensor converts ultrasonic frequencies to an audible range so they can be heard - Detects any pressurized leaking gas, including chlorofluorocarbon (CFCs), hydrofluorocarbon (HFCs), nitrogen (N), carbon dioxide (CO2), and steam - Parabola horn aids leak detection from a distance and in noisy areas - Extension tube provides additional reach for access to remote leaks ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Amprobe | | Part Number | 2734431 | | Item Weight | 1.39 pounds | | Product Dimensions | 12.4 x 10.5 x 5.7 inches | | Item model number | ULD-300 | | Is Discontinued By Manufacturer | No | | Style | Industrial | | Item Package Quantity | 1 | | Measurement Accuracy | +/- 5 C | | Display Style | Liquid Crystal Display (LCD) | | Certification | certified frustration-free | | Special Features | Automatic, positive implied, negative polarity indication. | | Included Components | Amprobe - 2734431 ULD-300 Ultrasonic Leak Detector | | Batteries Included? | Yes | | Batteries Required? | Yes | | Battery Cell Type | Alkaline | | Warranty Description | One Year Limited Warranty | ## Images ![Amprobe ULD-300 Ultrasonic Leak Detector - Image 1](https://m.media-amazon.com/images/I/71l4MI4vtcL.jpg) ## Questions & Answers **Q: I have a pressurized leak 5 foot under ground, in a geo thermal heating system. will it detect that do yo think** A: The ULD needs the leak to be venting to atmosphere. We do not make a unit that will work for underground leaks. bob@omnicontrols.com **Q: If I have a pressurised product with tiny leakage will this pick it up?** A: It depends on how small the leak is. Pressure leaks are found more easily than vacuum leaks. I have detected a .002 in leak with 6 psi pressure. **Q: How does it find a possible bad bearing?** A: didn't know it was used for that but it is possible it picks up sound so if a bearing started making noise it is possible **Q: will it work to find underground water leaks** A: No It Detects any pressurized leaking gas, including chlorofluorocarbon (CFCs), hydrofluorocarbon (HFCs), nitrogen (N), carbon dioxide (CO2), and steam ## Customer Reviews ### ⭐⭐⭐⭐⭐ Awesome finding a residential gas line leak... *by N***N on May 16, 2017* I used this to locate a pesky gas line leak. It's fantastic! It wasn't absolutely necessary (I used bubble solution before I bought this, but there was one connection outside just before the meter that I never bothered to check, and the ULD-300 honed in on it right away.)The full story is that a pro did my gas line install, then I added on at a few places. At some point I lost the ability to hold 30 PSI and couldn't find the leak with my homemade dish soap and spray bottle solution, so I aired the system up to 120 PSI and eventually bought a bottle of the blue Oatey Mega Bubble stuff. Of course, pressurizing to 120 PSI meant any questionable joints blew out, and the bubbles found a half dozen locations that needed my attention. I finally threw in the towel and picked up the Amprobe at an open box discount.The instrument is about the size of a bottle of fuel system additive. It comes in a soft-shell zippered carrying case with a parabolic dish attachment, a "focused" attachment, and a sloppily cut length of rubber tubing to use like a stethoscope. There's also a junky pair of '80s style Walkman headphones, and mine had the 9V battery already installed (but maybe because it was open box? Not sure...)The "learning curve" is minimal. There is a high and low volume setting, a 1x, 10x, and 100x sensitivity selector, and a thumb wheel that acts like a squelch control on a 2-way radio, and really just fine tunes the sensitivity vs. the background noise. There's a constant hiss of static played through the headphones, but the static changes as you swing the probe towards the leak, or other ultrasonic emitters such as CFL light bulbs. There is also a 10-step LED bar that provides a visual indication of sound being detected.Unsure what to expect or listen for, I first picked up the whine of some fluorescent bulbs, then of a leaking fitting on my air compressor hose. After that, a walk along the mostly exposed gas line listening for any change in sound. This proved very effective from a few feet away (great, since most of my run is up in the ceiling). At one point I honed in on a fitting that it turned out was reflecting noise emitted from that leaky air compressor hose, which was about 6 feet away from me. I also got a false read from some pink fiberglass insulation I gently pushed up against to expose a fitting -- although I couldn't see the insulation moving, it popped off with an ultrasonic-range "crinkling" that definitely didn't sound like an air leak, but stood out prominently against the background noise.Eventually, after finding nothing inside the house, I ended up outside at the start of my system. Zeroed in on the pipe cap that's a place holder for where the gas company meter will eventually be installed. Hadn't even bothered to check this because the plumber did it, and it was holding pressure for him prior to me tearing into his work. As it turns out, I think this is where he had his test gauge installed, so this cap was added on only after his test was completed and while it held 30 PSI, I must have blown it out with 120 PSI.Now the question is what to do with this tester. But I think I can make a little side money renting it out locally on Craigslist since I was searching for rentable Ultrasonic testers prior to making this purchase. Ultimately, the bubble solution would have found this leak had I looked there, but this tester is certainly the preferable method for me.Only question to answer is whether it would easily find a live gas leak at 1/2 PSI?!? I'll test that and and update this review in the coming days. ### ⭐⭐⭐⭐ Its OK *by C***N on December 1, 2024* Been using this for several years now. One side of the headphone frame broke but I used some tape to fix it. Otherwise.. it does a good job of pinpointing refrigerant leaks. ### ⭐⭐ Would work in certain applications! *by D***K on June 22, 2015* I believe this would work well for different applications, but A/C needs to have a rather large leak or the surface wet down. This was not convenient for me, so I found it not able to be applicable to my work. I sent it back. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.lk/products/6326255-amprobe-uld-300-ultrasonic-leak-detector](https://www.desertcart.lk/products/6326255-amprobe-uld-300-ultrasonic-leak-detector) --- *Product available on Desertcart Sri Lanka* *Store origin: LK* *Last updated: 2026-05-24*